I like psyllium husk powder that is plain and I look for organic. I don't want a bunch of other stuff in there, like sugars that they have in the mixes like metamucil. I have really noticed a difference when there are sugars and crap mixed in with the psyllium because it feels kinda yucky. The psyllium by itself, powdered, mixed with water and gulped down immediately before it gets thick, is clean feeling.
Here's a good one: https://www.iherb.com/pr/front...er-16-oz-453-g/31080